JPWO2018025875A1 - contact - Google Patents

Abstract

Provided is a contact capable of obtaining good transmission characteristics for high frequency signals even in a low profile state. The contact (40) according to the present invention is a contact (40) provided in the first connector (20) connected to the second connector (70) in order to electrically connect the circuit boards (CB1) and (CB2) to each other. A first contact portion (45) in contact with the contact (90) of the second connector (70) when the first connector (20) and the second connector (70) are connected, and a first connector (20) And a curved portion (43) connecting the pair of locking portions (42), and a curved portion (43). Is formed at a position lower than the portion of the first contact portion (45) that protrudes most toward the curved portion (43).

Description

Cross-reference to related applications

  This application claims the priority of Japanese Patent Application No. 2016-153896 filed in Japan on August 4, 2016, the entire disclosure of which is incorporated herein by reference.

  The present invention relates to a contact for electrically connecting circuit boards.

  In recent years, in electronic devices, the increase in the amount of information or the speeding up of communication speed has significantly progressed, and measures against noise in the devices have become important issues. On the other hand, the miniaturization of electronic devices in recent years is in progress, and the connectors themselves mounted in the electronic devices are also required to be miniaturized. Therefore, even in a connector with a reduced height, it is required to design a contact that properly takes into consideration crosstalk with high frequency signals, impedance matching, and the like.

  In the electrical connector for a circuit board described in Patent Document 1, in order to obtain a shielding effect against noise, two shield members cover substantially the entire area of the outer peripheral surface of the housing.

JP 2008-146870 A

  However, in the electrical connector for a circuit board described in Patent Document 1, a contact design for obtaining good transmission characteristics for a high frequency signal in a state where the height is reduced has not been considered.

  An object of the present invention made in view of such problems is to provide a contact which can obtain good transmission characteristics for high frequency signals even in a low height state.

In order to solve the above-mentioned subject, the contact concerning the 1st viewpoint is:
A contact provided in a first connector connected to a second connector to electrically connect circuit boards, the contact comprising:
A first contact portion that contacts a contact provided to the second connector when the first connector and the second connector are connected;
A pair of locking portions for locking to a first insulator provided in the first connector;
A curved portion connecting the pair of locking portions;
Equipped with
The curved portion is formed at a position lower than a portion of the first contact portion that protrudes most toward the curved portion.

In the contact according to the second aspect,
And a resilient contact piece continuous with the locking portion formed on the inner side and including the first contact portion,
The resilient contact piece is wider than the curved portion.

In the contact according to the third aspect,
The tip of the elastic contact piece is formed at a height position substantially equal to a portion of the first contact portion that protrudes most toward the curved portion.

In order to solve the above-mentioned subject, the contact concerning the 4th viewpoint is:
A contact that contacts the contact according to any of the above, wherein
A second contact portion that contacts the first contact portion when the first connector and the second connector are connected;
An extension portion extending outward in a substantially U shape from the second contact portion;
Equipped with
The substantially U-shaped tip end of the extension portion is formed at the same height position as the second contact portion.

  According to the contact according to the embodiment of the present invention, it is possible to obtain good transmission characteristics for high frequency signals even in a low-profile state.

It is the perspective view which showed the connector which concerns on one Embodiment by the top view in the state which the receptacle connector and the plug connector isolate | separated. It is the perspective view which showed the receptacle connector single-piece | unit by top view. It is a top view of a receptacle connector single-piece | unit. It is a disassembled perspective view by top view of a receptacle connector. It is the perspective view which showed the receptacle insulator single-piece | unit by top view. It is an enlarged view of the VI section of FIG. It is sectional drawing in alignment with the VII-VII arrow line of FIG. It is sectional drawing in alignment with the VIII-VIII arrow line of FIG. It is the perspective view which showed the receptacle contact single-piece | unit by top view. It is sectional drawing in alignment with the XX arrow line of FIG. It is the perspective view which showed the receptacle power supply contact single-piece | unit by top view. It is sectional drawing in alignment with the XII-XII arrow line of FIG. It is the perspective view which showed a pair of receptacle shielding member by top view. It is the perspective view which showed the plug connector single body by top view. It is a top view of a single plug connector. It is the perspective view which showed only the plug insulator among the plug molded products by top view. It is the perspective view which showed the plug contact single-piece | unit by top view. It is sectional drawing in alignment with the XVIII-XVIII arrow line of FIG. It is the perspective view which showed the plug power supply contact single-piece | unit by top view. It is sectional drawing which follows the XX-XX arrow line of FIG. It is the perspective view which showed a pair of plug shielding member by top view. It is the perspective view which showed the connector of FIG. 1 by the top view in the state which the receptacle connector and the plug connector fitted. FIG. 23 is a cross-sectional view taken along line XXIII-XXIII of FIG. 22 and showing a state before the receptacle connector and the plug connector are fitted. FIG. 23 is a cross-sectional view along line XXIII-XXIII of FIG. 22 showing a state after fitting of the receptacle connector and the plug connector. FIG. 23 is a cross-sectional view taken along the line XXIV-XXIV of FIG. 22, showing the receptacle connector and the plug connector prior to engagement; FIG. 23 is a cross-sectional view taken along the line XXIV-XXIV of FIG. 22 showing how the receptacle connector and the plug connector are fitted.

  Hereinafter, one embodiment will be described with reference to the accompanying drawings. Front, rear, left, right, and top and bottom directions in the following description are based on the directions of arrows in the drawings. In the following description, the first connector is the receptacle connector 20, and the second connector is the plug connector 70. However, the present invention is not limited to this, the first connector may serve as a plug and the second connector may serve as a receptacle.

  In the following description, the receptacle connector 20 and the plug connector 70 will be described as being vertically fitted to the circuit boards CB1 and CB2, respectively. That is, the receptacle connector 20 and the plug connector 70 fit in the vertical direction. However, the present invention is not limited to this, and the receptacle connector 20 and the plug connector 70 may be fitted in parallel to the circuit boards CB1 and CB2, respectively, or one in the vertical direction and the other in the parallel direction. It may be fitted. The receptacle connector 20 or the plug connector 70 may be connected to a circuit board other than a rigid board, for example, a flexible printed circuit (FPC).

  FIG. 1 is a perspective view of the connector 10 according to an embodiment, as viewed from above, with the receptacle connector 20 and the plug connector 70 separated.

  The connector 10 of one embodiment includes a receptacle connector 20 (first connector) and a plug connector 70 (second connector) as large components.

  FIG. 2 is a perspective view showing the receptacle connector 20 alone in a top view. FIG. 3 is a top view of the receptacle connector 20 alone. FIG. 4 is an exploded perspective view of the receptacle connector 20 as viewed from above. FIG. 5 is a perspective view showing the receptacle insulator 30 alone from above. 6 is an enlarged view of a VI part of FIG. 7 is a cross-sectional view taken along the line VII-VII in FIG. FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. FIG. 9 is a perspective view showing the receptacle contact 40 alone from above. FIG. 10 is a cross-sectional view taken along the line XX in FIG. FIG. 11 is a perspective view showing the receptacle power supply contact 50 alone from above. 12 is a cross-sectional view taken along the line XII-XII in FIG. FIG. 13 is a perspective view showing the pair of receptacle shielding members 60 in top view.

  The detailed structure of the receptacle connector 20 will be described mainly with reference to FIGS.

  As shown in FIG. 4, the receptacle connector 20 includes, as major components, a receptacle insulator 30 (first insulator), a plurality of receptacle contacts 40 (contacts), four receptacle power contacts 50, and a pair of receptacle shielding members 60. And (a first shielding member).

  The receptacle insulator 30 is a member extending in the left-right direction, which is an injection-molded insulating and heat-resistant synthetic resin material (see FIG. 5). The receptacle insulator 30 protrudes upward from the bottom plate portion 31 constituting the lower portion and the front and rear side peripheral edge portions of the top surface of the bottom plate portion 31 and protrudes upward from the pair of outer peripheral walls 32 opposed to each other and the top surface of the bottom plate portion 31 And a fitting convex portion 33 formed between the outer peripheral walls 32 of The fitting convex part 33 spaced apart inward from the outer peripheral wall 32 linearly extends in the left-right direction. A space formed between the outer peripheral wall 32 and the fitting protrusion 33 constitutes a pair of fitting recesses 34.

  A plurality of receptacle contacts 40 are attached to the upper surface and the rear surface of the front wall 32 a of the outer peripheral wall 32, the bottom surface (upper surface) of the bottom plate portion 31, and the front surface and the upper surface of the fitting protrusion 33. The contact attachment grooves 35 are recessed in line in the left-right direction (see FIG. 6). Similarly, a plurality of receptacle contacts 40 are attached to the upper surface and the front surface of the rear wall 32 b of the outer peripheral wall 32, the bottom surface (upper surface) of the bottom plate portion 31, and the rear surface and the upper surface of the fitting protrusion 33. The plurality of contact attachment grooves 35 are recessed in line in the left-right direction. The contact attachment grooves 35 are respectively formed to penetrate the receptacle insulator 30 in the vertical direction. The number of contact mounting grooves 35 is the same as the number of receptacle contacts 40. The contact mounting groove 35 is formed on the front surface and the rear surface of the fitting protrusion 33, and includes a deformation allowing groove 35a which is recessed deeper inside the fitting protrusion 33 (see FIG. 7). The contact mounting groove 35 has contact engaging projections 35b which are provided on the left and right sides of groove portions respectively formed on the rear surface and the front surface of the front wall 32a and the rear wall 32b and extend in the vertical direction.

  In order to attach the receptacle power contact 50 on the upper surface and the rear surface of the left and right end portions of the front wall 32a, the bottom surface (upper surface) of the bottom plate portion 31, and the front surface and the upper surface of the left and right end portions of the fitting protrusion 33 Power supply contact mounting groove 36 is recessed (see FIG. 6). Similarly, receptacle power supply contacts 50 are provided on the upper surface and the front surface of the left and right end portions of the rear wall 32b, the bottom surface (upper surface) of the bottom plate portion 31, and the rear surface and the upper surface of the left and right end portions of the fitting convex portion 33. The power supply contact mounting groove 36 for mounting the connector is recessed. The power supply contact mounting grooves 36 are respectively formed to penetrate the receptacle insulator 30 in the vertical direction. The number of power supply contact mounting grooves 36 is the same as the number of receptacle power supply contacts 50. The power supply contact mounting groove 36 is formed on the front surface and the rear surface of the fitting protrusion 33, and includes a deformation allowing groove 36a which is recessed deeper inside the fitting protrusion 33 (see FIG. 8). The power supply contact mounting groove 36 is provided with a power supply contact engagement projection 36b which is provided on the left and right sides of a groove formed respectively on the rear surface and the front surface of the front wall 32a and the rear wall 32b. .

  A pair of support portions 37 for supporting the pair of receptacle shielding members 60 is formed on the left and right edges of the receptacle insulator 30 (see FIG. 5). The pair of support portions 37 is point-symmetrically disposed between the left and right edge portions of the receptacle insulator 30. The pair of support portions 37 is formed such that the length in one front-rear direction is shorter than the length in the other front-rear direction at each edge. The longitudinal width of the entire pair of support portions 37 is larger at each edge than the longitudinal width between the outer surface of the front wall 32a and the outer surface of the rear wall 32b.

  Each receptacle contact 40 is formed by processing a thin sheet of a spring-elastic copper alloy (for example, phosphor bronze, beryllium copper or titanium copper) or a corson copper alloy into a shape shown in the figure using a stamping (stamping) (See Figure 9). The surface of each receptacle contact 40 is plated with gold or tin after a base is formed by nickel plating.

  The receptacle contact 40 includes a mounting portion 41 extending outward in a substantially L shape. The receptacle contact 40 includes a pair of locking portions 42 configured of a portion continuous above the inner end portion of the mounting portion 41 and a portion spaced apart from and facing the portion in the front-rear direction. The receptacle contact 40 includes a curved portion 43 connecting a pair of locking portions 42, a substantially S-shaped elastic contact piece 44 continuous with the locking portion 42 formed inside, and a tip end portion of the elastic contact piece 44. And a contact portion 45 (first contact portion) formed facing outward.

  The curved portion 43 is formed at a lower position than the portion of the contact portion 45 that protrudes most toward the curved portion 43. The resilient contact piece 44 is wider than the curved portion 43. The tip end of the resilient contact piece 44 is formed at a height position substantially equal to the portion of the contact portion 45 that most protrudes toward the curved portion 43.

  Each receptacle contact 40 is press-fit from the lower side of the receptacle insulator 30, and is engaged with the left and right inner wall surfaces of the contact attachment groove 35 while the pair of engagement portions 42 and the contact engagement projections 35b are engaged. Thereby, each receptacle contact 40 is held with respect to each contact mounting groove 35 (see FIGS. 4 and 10). When the receptacle contact 40 is held by the receptacle insulator 30 (contact mounting groove 35), the resilient contact piece 44 is separated from the inner surface of the deformation allowing groove 35a. Therefore, the elastic contact piece 44 can be elastically deformed in the front-rear direction in the deformation allowing groove 35a (see FIG. 10). The mounting portion 41 of each receptacle contact 40 is located on the outer peripheral side of the outer peripheral wall 32. That is, the tip of the mounting portion 41 of each receptacle contact 40 is located outside the outer peripheral wall 32.

  The receptacle power supply contact 50 includes a mounting portion 51 extending outward in a substantially L shape (see FIG. 11). The receptacle power supply contact 50 includes a pair of locking portions 52 configured of a portion continuous above the inner end portion of the mounting portion 51 and a portion spaced apart from and facing the portion in the front-rear direction. The receptacle power supply contact 50 includes a curved portion 53 connecting the pair of locking portions 52, and a substantially S-shaped elastic contact piece 54 continuous with the locking portion 52 formed inside. The receptacle power supply contact 50 includes a contact portion 55 formed outward on the tip of the resilient contact piece 54 and a protrusion 56 located on the top of the locking portion 52 formed on the inner side.

  Each receptacle power contact 50 is press-fit from the lower side of the receptacle insulator 30, and engaged with the left and right inner wall surfaces of the power contact mounting groove 36 while the pair of locking portions 52 and the power contact engagement projections 36b are engaged. Thus, the receptacle power contacts 50 are held against the power contact mounting grooves 36 (see FIGS. 4 and 12). When the receptacle power contact 50 is held by the receptacle insulator 30 (power contact mounting groove 36), the resilient contact piece 54 is separated from the inner surface of the deformation allowing groove 36a. Therefore, the elastic contact piece 54 is elastically deformable in the front-rear direction in the deformation allowing groove 36a (see FIG. 12). The mounting portion 51 of each receptacle power supply contact 50 is located on the outer peripheral side of the outer peripheral wall 32. That is, the tip of the mounting portion 51 of each receptacle power supply contact 50 is located outside the outer peripheral wall 32.

  The pair of front and rear receptacle shielding members 60 are identical parts having the same shape as each other (see FIGS. 3 and 13). Each receptacle shielding member 60 is formed by pressing a metal plate (conductive material). Each receptacle shielding member 60 includes a flat outer peripheral shielding portion 61 (first outer peripheral shielding portion) which is formed by the outer surface thereof and extends in the left-right direction. The receptacle shielding member 60 includes an elastically deformable portion 62 formed from the lower edge portion of the outer peripheral side shielding portion 61 toward the receptacle insulator 30 side (inner side). The elastically deformable portion 62 horizontally extends inwardly by a predetermined width from the lower edge portion of the outer peripheral side shielding portion 61, and bends upwardly outward at the end edge portion of the horizontally extending portion ( See Figure 12). A space surrounded by the outer peripheral side shielding portion 61 and the elastic deformation portion 62 opens upward. The receptacle shielding member 60 penetrates the elastically deformable portion 62 in the vertical direction, and inclines toward the inside of the receptacle insulator 30 from the plurality of through holes 63 separated from each other by a predetermined distance and the tip of the elastically deformable portion 62. And a guide portion 64 provided in a protruding manner.

  The receptacle shielding member 60 is formed at the lower end portion of the outer peripheral side shielding portion 61, and includes a plurality of mounting portions 65 (first mounting portions) which are separated at predetermined intervals. The mounting portion 65 extends inward from the lower end portion of the outer peripheral side shielding portion 61 in a substantially L shape. The position of the mounting portion 65 in the left-right direction coincides with the position of the corresponding through hole 63 in the left-right direction. That is, the tip of the mounting portion 65 is disposed immediately below the through hole 63 (see FIG. 3).

  The receptacle shielding member 60 includes engaging portions 66 (first engaging portions) protruding from the left and right ends on the inner side (see FIG. 13). The engaging portions 66 are provided in a protruding manner in a claw shape at the left and right both end portions inside the outer peripheral side shielding portion 61. The receptacle shielding member 60 has a pair of short parts 67 extending from the left and right ends of the outer peripheral shielding part 61 toward the receptacle insulator 30. The length in the front-rear direction of the facing short part 67 is asymmetrical. More specifically, the length in the front-rear direction of one of the opposed short parts 67 is shorter than the length in the front-rear direction of the other short part 67. The front-rear width of the short side portion 67 having a longer length in the front-rear direction among the facing short side portions 67 is larger than half of the front-rear width of the entire receptacle connector 20. Mounting portions 68 are formed on the pair of short portions 67, respectively. The mounting portion 68 is substantially U-shaped in cross section. That is, the attachment portion 68 is configured by three surfaces of both the left and right side surfaces and the upper surface. The length of one attachment portion 68 in the front-rear direction of the pair of attachment portions 68 is shorter than the length of the other attachment portion 68 in the front-rear direction. The upper edge of the mounting portion 68 has an R shape.

  Each receptacle shielding member 60 is held relative to the receptacle insulator 30 by locking the pair of mounting portions 68 and the support portion 37 from above (see FIGS. 4, 10, and 12). When the receptacle shielding member 60 is held by the receptacle insulator 30, a portion of the receptacle shielding member 60 separates from the receptacle insulator 30. More specifically, the outer peripheral wall 32, the elastic deformation portion 62, and the induction portion 64 are separated in the front-rear direction. That is, an air gap S1 extending in the left-right direction is formed between the outer peripheral wall 32 and the elastic deformation portion 62 and the induction portion 64. At this time, the tip of the mounting portion 41 of the receptacle contact 40 and the tip of the mounting portion 51 of the receptacle power contact 50 can be viewed in the vertical direction (the fitting direction of the first connector and the second connector) in the air gap S1. There (see Figure 3). The tip of the mounting portion 65 of the receptacle shielding member 60 is visible in the through hole 63 in the vertical direction (the fitting direction of the first connector and the second connector).

  When the receptacle shielding member 60 is held by the receptacle insulator 30, the upper edge of the outer peripheral shielding part 61 of the receptacle shielding member 60 is slightly above the upper surfaces of the outer peripheral wall 32 of the receptacle insulator 30 and the fitting projection 33. (See FIGS. 10 and 12).

  The shielding structure of the receptacle shielding member 60 is a double structure along the longitudinal and lateral directions. More specifically, the shielding structure includes a double structure along the left-right direction of the flat-plate-shaped outer peripheral side shielding portion 61, the elastic deformation portion 62, and the guiding portion 64. Similarly, the shielding structure includes a double structure along the front-rear direction by the left and right side surfaces of the mounting portion 68.

  In the receptacle connector 20 having the structure as described above, the mounting portion of each receptacle contact 40 with respect to the circuit pattern formed on the mounting surface of the circuit board CB1 (rigid board; first circuit board; see FIGS. 10 and 12). 41 is soldered. The mounting portion 51 of each receptacle power supply contact 50 is soldered to the power supply pattern formed on the mounting surface. Each mounting portion 65 of the receptacle shielding member 60 is soldered to the ground pattern formed on the mounting surface. Thus, the receptacle connector 20 is mounted on the circuit board CB1. Electronic components (e.g., a CPU, a controller, a memory, etc.) other than the receptacle connector 20 are mounted on the mounting surface of the circuit board CB1.

  The detailed structure of the plug connector 70 will be described mainly with reference to FIGS. 14 to 21.

  FIG. 14 is a perspective view showing the plug connector 70 alone in a top view. FIG. 15 is a top view of the plug connector 70 alone. FIG. 16 is a perspective view showing only the plug insulator 80 of the plug molded product 75 in top view. FIG. 17 is a perspective view showing the plug contact 90 alone in a top view. 18 is a cross-sectional view taken along line XVIII-XVIII in FIG. FIG. 19 is a perspective view showing the plug power contact 100 alone in a top view. FIG. 20 is a cross-sectional view taken along the line XX-XX in FIG. FIG. 21 is a perspective view showing the pair of plug shielding members 110 in top view.

  The plug connector 70 includes a plug molding 75, four plug power contacts 100, and a pair of plug shielding members 110 (second shielding members) as large components. The plug molded product 75 is composed of a plug insulator 80 (second insulator) and a plurality of plug contacts 90 (contacts).

  The plug molded product 75 is a plate-like member extending in the left-right direction, which is formed by insert-molding an insulating and heat-resistant synthetic resin together with a plurality of plug contacts 90. The plug insulator 80 constituting the plug molded product 75 includes a bottom plate portion 81 constituting a lower portion, and an annular wall 82 projecting upward from the entire peripheral portion of the upper surface of the bottom plate portion 81 (see FIG. 16). A space formed by the bottom plate portion 81 and the annular wall 82 constitutes a fitting recess 83.

  On the front wall 82a and the rear wall 82b of the annular wall 82, a plurality of contact holding grooves 84 having a substantially U-shaped cross section straddling both front and rear surfaces and the upper surface are recessed in line in the left-right direction. The plurality of plug contacts 90 are respectively held in the plurality of contact holding grooves 84. The number of contact holding grooves 84 is equal to the number of plug contacts 90.

  At both left and right end portions of the front wall 82a, power contact attachment grooves 85 having a substantially U-shaped cross-section are provided in a recessed manner across the front and rear surfaces and the upper surface. Similarly, power contact attachment grooves 85 having a substantially U-shaped cross-section are provided in a recessed manner at the left and right end portions of the rear wall 82b, extending across the front and rear surfaces and the upper surface. The plug power contact 100 is attached to the power contact attachment groove 85. The number of power supply contact mounting grooves 85 is the same as the number of plug power supply contacts 100.

  At the left and right edges of the plug insulator 80, a pair of support portions 86 for supporting the two plug shield members 110 are formed. The pair of support portions 86 is point-symmetrically arranged between the left and right edges of the plug insulator 80. The pair of support portions 86 is formed such that the length in one front-rear direction is shorter than the length in the other front-rear direction at each edge. The longitudinal width of the pair of support portions 86 as a whole is larger than the longitudinal width of the annular wall 82 at each edge.

  Each plug contact 90 is formed by processing a thin plate of a copper alloy (for example, phosphor bronze, beryllium copper or titanium copper) or a corson-based copper alloy into a shape shown in the figure using a stamping (stamping) (see FIG. 17). ). The surface of each plug contact 90 is plated with gold or tin after a base is formed by nickel plating.

  The plug contact 90 includes a mounting portion 91 extending outward in a substantially L shape. The plug contact 90 is continuous from above the inner end of the mounting portion 91 and extends in a substantially U shape outward from the contact portion 92 (second contact portion) formed facing inward. And an extending part 93. The plug contact 90 further includes a plug protrusion 94 formed on the upper portion of the contact portion 92 and a lead-in portion 95 formed on the upper surface of the extension portion 93.

  The substantially U-shaped tip end of the extending portion 93 is formed at the same height position as the contact portion 92.

  Each plug contact 90 is held with respect to each contact holding groove 84 by the contact holding groove 84 coming into contact with the entire inner surface of the other portion except for the tip of the mounting portion 91 (see FIG. 18). When the plug contacts 90 are held by the plug insulator 80 (contact holding groove 84), the mounting portions 91 of the plug contacts 90 are located on the outer peripheral side of the annular wall 82. That is, the tip of the mounting portion 91 of each plug contact 90 is located outside the annular wall 82.

  The plug power contact 100 includes a mounting portion 101 extending outward in a substantially L shape (see FIG. 19). The plug power supply contact 100 is formed continuously from above the inner end of the mounting portion 101, and extends inward in a substantially U-shape, and is formed inwardly on the outer surface of the extension 102. And a contact portion 103. The plug power supply contact 100 includes locking portions 104 protruding from both left and right side surfaces of the outer side portion of the extending portion 102 and a guiding portion 105 formed on the upper surface of the extending portion 102. The plug power contact 100 further includes a first protrusion 106 protruding outward on the outer surface of the extension 102 and a second protrusion 107 formed on the top of the contact portion 103. The plug power contact 100 further includes a stabilizer 108 formed at the substantially U-shaped tip of the extension 102.

  Each plug power contact 100 is press-fit from the upper side of the plug molded product 75, and the groove outside the power contact mounting groove 85 is engaged with the locking portion 104 to be held relative to each power contact mounting groove 85. (See FIGS. 14, 16 and 20). When the plug power contacts 100 are held by the plug molded product 75 (power contact attachment grooves 85), the mounting portions 101 of the plug power contacts 100 are located on the outer peripheral side of the annular wall 82. That is, the tip of the mounting portion 101 of each plug power contact 100 is located outside the annular wall 82. The stabilizer 108 of each plug power contact 100 is engaged with the deepest portion inside the power contact mounting groove 85 (see FIG. 20).

  The pair of front and rear plug shield members 110 are identical parts having the same shape as each other (see FIG. 21). Each plug shielding member 110 is formed by pressing a metal plate (conductive material). Each plug shielding member 110 includes a flat outer peripheral shielding portion 111 (second outer peripheral shielding portion) which is configured by the outer surface thereof and extends in the left-right direction. Inside the outer peripheral side shielding part 111, the inner peripheral side shielding part 112 which consists of a flat plate parallel to the outer peripheral side shielding part 111 is located. The left-right width of the inner peripheral side shield portion 112 is shorter than the outer peripheral side shield portion 111, and the lower edge portion of the inner peripheral side shield portion 112 is positioned above the lower edge portion of the outer peripheral side shield portion 111 (FIG. 18). , FIG. 20 and FIG. 21). The plug shielding member 110 includes a curved connection portion 113 connecting the upper edge portion of the inner peripheral side shielding portion 112 and the upper edge portion of the outer peripheral side shielding portion 111. The cross-sectional shape of the curved connection portion 113 is a curved shape that is convex toward the upper side. The outer peripheral side shielding part 111, the inner peripheral side shielding part 112, and the curved connection part 113 comprise the bending part 114 bent in a substantially U shape. The bent portion 114 is formed toward the plug molded product 75 side.

  The plug shielding member 110 is formed at the lower end portion of the outer peripheral side shielding portion 111, and includes a plurality of mounting portions 115 (second mounting portions) each of which is separated by a predetermined distance. The mounting portion 115 linearly extends from the lower end portion of the outer peripheral side shielding portion 111 in the vertical direction (the fitting direction between the first connector and the second connector).

  The plug shielding member 110 includes engaging portions 116 (second engaging portions) which are recessed at the left and right outer end portions (see FIG. 21). The position of the engagement portion 116 corresponds to the position of the engagement portion 66 of the receptacle shielding member 60. The engaging portions 116 are formed in a pair in the form of a recess at the left and right ends outside the outer peripheral shielding portion 111. The plug shielding member 110 has a pair of short parts 117 extending from the left and right ends of the outer peripheral shielding part 111 toward the plug insulator 80. The length in the front-rear direction of the opposing short part 117 is asymmetrical. More specifically, the length in the front-rear direction of one of the opposing short parts 117 of the opposing short parts 117 is shorter than the length in the front-rear direction of the other short part 117. The front-rear width of the short side portion 117 having a longer length in the front-rear direction among the facing short side portions 117 is larger than half of the front-rear width of the entire plug connector 70. Mounting portions 118 are formed on the pair of short portions 117, respectively. The mounting portion 118 is substantially U-shaped in cross section. That is, the attachment portion 118 is formed of three surfaces of left and right side surfaces and an upper surface. The length of one attachment portion 118 of the pair of attachment portions 118 in the front-rear direction is shorter than the length of the other attachment portion 118 in the front-rear direction. The upper edge of the mounting portion 118 has an R shape.

  Each plug shield member 110 is held with respect to the plug molded product 75 by locking the pair of mounting portions 118 and the support portion 86 from the upper side (see FIGS. 14, 18, and 20). When the plug shield member 110 is held by the plug molded product 75, a portion of the plug shield member 110 separates from the plug insulator 80. More specifically, the annular wall 82 and the inner circumferential shielding portion 112 are separated in the front-rear direction. That is, an air gap S2 extending in the left-right direction is formed between the annular wall 82 and the inner circumferential shielding portion 112. At this time, the tip of the mounting portion 91 of the plug contact 90 and the tip of the mounting portion 101 of the plug power contact 100 are visible in the air gap S2 from the vertical direction (the fitting direction of the first connector and the second connector) There is (Figure 15).

  The shielding structure of the plug shielding member 110 is a double structure along the longitudinal and lateral directions. More specifically, the shielding structure includes a double structure along the left-right direction of the flat outer peripheral shielding portion 111 and the inner peripheral shielding portion 112. Similarly, the shielding structure includes a double structure along the front-rear direction by the left and right side surfaces of the mounting portion 118.

  The plug connector 70 having the above structure is mounted on a mounting surface formed on one surface of a circuit board CB2 (rigid board, second circuit board, see FIGS. 18 and 20) which is a plate material parallel to the circuit board CB1. Be done. Specifically, the mounting portion 91 of each plug contact 90 is soldered to the circuit pattern formed on the mounting surface of the circuit board CB2. The mounting portion 101 of each plug power supply contact 100 is soldered to the power supply pattern formed on the mounting surface. Each mounting portion 115 of the plug shield member 110 is soldered to the ground pattern formed on the mounting surface. On the mounting surface of the circuit board CB2, an electronic component (for example, a high function module, a semiconductor, a large capacity memory, etc.) other than the plug connector 70 is mounted.

  The procedure for connecting the plug connector 70 to the receptacle connector 20 will be described.

  FIG. 22 is a perspective view of the connector 10 of FIG. 1 as viewed from above when the receptacle connector 20 and the plug connector 70 are fitted. FIGS. 23A and 23B are cross-sectional views taken along the line XXIII-XXIII of FIG. 22 showing how the receptacle connector 20 and the plug connector 70 are fitted. FIG. 23A shows a state before fitting, and FIG. 23B shows a state after fitting. FIGS. 24A and 24B are cross-sectional views showing a state when the receptacle connector 20 and the plug connector 70 are fitted, along the line XXIV-XXIV in FIG. FIG. 24A shows a state before fitting, and FIG. 24B shows a state after fitting.

  As shown in FIG. 1, FIG. 23A and FIG. 24A, in the state where the vertical direction of the plug connector 70 is reversed, the front and rear positions and the left and right positions of the receptacle connector 20 and the plug connector 70 substantially coincide with each other. Make them face up and down. Then, the plug connector 70 is moved downward. The upper edge of the outer peripheral shielding portion 61 is slightly above the upper surfaces of the outer peripheral wall 32 and the fitting convex portion 33 of the receptacle insulator 30, as described above, even if the positions thereof are slightly offset in the longitudinal direction, for example. In order to be positioned, it initially abuts against the curved connection 113 of the plug shield 110. As a result, the plug connector 70 is drawn into the receptacle connector 20. Similarly, the lower edge of the mounting portion 118 of the plug shielding member 110 and the upper edge of the mounting portion 68 of the receptacle shielding member 60, which are also R-shaped, even if the positions thereof are somewhat offset in the lateral direction, for example. Contacts and the former is invited by the latter.

  On the other hand, for example, when the positions of the receptacle connector 20 and the plug connector 70 are shifted in the left-right direction, the mounting portion 68 of the receptacle connector 20 abuts on the mounting portion 118 of the plug connector 70 as described above. Therefore, the receptacle connector 20 and the plug connector 70 do not mate. In such a case, the metal flat surfaces of the mounting portion 68 and the mounting portion 118 contact each other even if the connectors are forced to be fitted. Thus, the connector 10 can prevent the receptacle connector 20 and the plug connector 70 from being damaged.

  When the plug connector 70 is further moved downward, the front wall 82a and the rear wall including the lead-in portion 95 of the plug contact 90 and the lead-in portion 105 of the plug power contact 100 even if their positions are slightly deviated in the longitudinal direction, for example. The lower end surface of 82 b contacts the inner edge of the outer peripheral wall 32, whereby the front wall 82 a and the rear wall 82 b enter the fitting recess 34. That is, the lead-in portion 95 of the plug contact 90 and the lead-in portion 105 of the plug power contact 100 intrude into the fitting recess 34 (see FIGS. 23B and 24B). When the plug connector 70 is further moved downward, the bent portion 114 of the plug shielding member 110 is guided downward by the guide portion 64 of the receptacle shielding member 60.

  At this time, the plug projection 94 of the plug contact 90 comes in contact with the contact portion 45 of the receptacle contact 40, and the plug projection 94 elastically deforms the elastic contact piece 44 inward in the deformation permitting groove 35a. Then, while the plug projection 94 moves downward, the plug projection 94 rides over the contact portion 45, and the contact portion 92 and the contact portion 45 contact. The contact between the plug contact 90 and the receptacle contact 40 is only one point due to the contact between the contact 92 and the contact 45. More specifically, the portion of the contact portion 45 most projecting toward the curved portion 43 and the corresponding portion of the contact portion 92 constitute one contact point. Thus, the circuit board CB2 and the circuit board CB1 can be electrically conducted to each other through the plug contact 90 and the receptacle contact 40.

  Similarly, the first projection 106 and the second projection 107 of the plug power contact 100 elastically deform the elastic contact piece 54 so as to push up the distance between the projection 56 and the contact portion 55. And while the 1st projection 106 and the 2nd projection 107 move below, they go over projection 56 and contact portion 55, respectively. Thereafter, the first projection 106 and the projection 56 are engaged, and the contact portion 103 and the contact portion 55 are in contact with each other. The contact between the plug power supply contact 100 and the receptacle power supply contact 50 is at two points due to the engagement between the first protrusion 106 and the protrusion 56 and the contact between the contact portion 103 and the contact portion 55. Thus, power can be supplied to both the circuit board CB2 and the circuit board CB1 through the plug power contact 100 and the receptacle power contact 50.

  At this time, the fitting recess 83 fits in the fitting protrusion 33, and the front wall 82a and the rear wall 82b of the annular wall 82 fit in the fitting recess 34 (FIG. 22, FIG. 23B, FIG. 24B). A plug shield 110 mates with a corresponding receptacle shield 60. More specifically, when the plug shielding member 110 and the receptacle shielding member 60 are fitted, the bending portion 114 is received by the elastic deformation portion 62. At this time, a gap is formed between the outer peripheral side shielding portion 111 of the plug shielding member 110 and the outer peripheral side shielding portion 61 of the receptacle shielding member 60. The bent portion 114 and the elastically deformable portion 62 are in contact at an inner point in cross sectional view. More specifically, the inner peripheral side shielding portion 112 and the upper edge portion of the elastically deformable portion 62 are in contact at one inner point in a cross sectional view.

  The engaging portion 116 of the plug shielding member 110 and the engaging portion 66 of the receptacle shielding member 60 are engaged.

  Thus, the receptacle connector 20 and the plug connector 70 are completely connected.

  At this time, the receptacle shielding member 60 and the plug shielding member 110 are configured such that portions thereof are separated from the receptacle insulator 30 and the plug insulator 80 in a state of being fitted to each other. More specifically, the elastically deformable portion 62 and the guide portion 64 are spaced apart from the outer circumferential wall 32 and the annular wall 82 in the front-rear direction. The inner circumferential shielding portion 112 is separated from the outer circumferential wall 32 and the annular wall 82 in the front-rear direction.

  The positions of the gaps between the pair of receptacle shielding members 60 and the positions of the gaps between the pair of plug shielding members 110 are different in the lateral direction (see FIG. 22). More specifically, the gaps in the front-rear direction formed at the left and right ends by the pair of receptacle shielding members 60 do not overlap with the gaps in the front-rear direction formed at the left and right ends by the pair of plug shielding members 110. That is, the interiors of the connected receptacle connector 20 and plug connector 70 are completely surrounded by the pair of receptacle shielding members 60 and the pair of plug shielding members 110.

  The connector 10 as described above can reliably bring the receptacle shielding member 60 and the plug shielding member 110 into contact with each other even when the height of the connector 10 is reduced. Thereby, the connector 10 can improve the rigidity of the shielding structure configured by the receptacle shielding member 60 and the plug shielding member 110. The connector 10 can improve the rigidity of the plug shielding member 110 itself by the plug shielding member 110 having the bending portion 114. Thereby, the connector 10 can prevent the curvature, bending, and damage at the time of fitting operation or mounting. By the receptacle shielding member 60 having the elastic deformation portion 62 and the induction portion 64, the fit between the plug shielding member 110 and the receptacle shielding member 60 can be further improved.

  In the connector 10, a gap is formed between the outer peripheral side shielding portion 61 and the outer peripheral side shielding portion 111 at the time of fitting, thereby permitting minute positional deviation and bending of the receptacle shielding member 60 or the plug shielding member 110. Can. That is, the connector 10 can suppress the influence on the fitting between the receptacle contact 40 and the plug contact 90 which is given by the positional deviation and the bending when the receptacle shielding member 60 and the plug shielding member 110 fit.

  The connector 10 can strengthen the connection between the receptacle connector 20 and the plug connector 70 by the engagement between the engagement portion 66 and the engagement portion 116.

  The connector 10 can increase the spring length of the elastically deformable portion 62 even if the height is reduced by the receptacle shielding member 60 having the plurality of through holes 63. That is, the elastically deformable portion 62 can be made to be excellent in following property and difficult to plastically deform. As a result, the connector 10 facilitates the elastic deformation of the elastic deformation portion 62, improves the fit between the receptacle shielding member 60 and the plug shielding member 110, and can realize breakage prevention. The connector 10 can secure a space for arranging the mounting portion 65 by the plurality of through holes 63.

  In the connector 10, the receptacle shielding member 60 includes the mounting portion 65, so that the receptacle shielding member 60 and the ground pattern of the circuit board CB1 can be electrically connected by soldering. Similarly, when the plug shield member 110 includes the mounting portion 115, the connector 10 can electrically connect the plug shield member 110 and the ground pattern of the circuit board CB2 by soldering. As a result, the connector 10 can effectively prevent external noise from entering the receptacle contacts 40 and the plug contacts 90 and the like and noise from the receptacle contacts 40 and the plug contacts 90 and the like to leak to the outside.

  In the connector 10, the mounting portion 65 itself of the receptacle shielding member 60 can be disposed inside the receptacle shielding member 60 as the mounting portion 65 of the receptacle shielding member 60 extends inward. Thus, the connector 10 can effectively shield noise.

  In the connector 10, when the mounting portion 115 of the plug shielding member 110 linearly extends, the upper edge portion of the receptacle shielding member 60 is attached to the circuit board CB2 when the receptacle shielding member 60 and the plug shielding member 110 are fitted. It can be as close as possible. Thus, the connector 10 can enhance the noise shielding effect.

  In the connector 10, the receptacle shielding member 60 and the plug shielding member 110 are separated by separating a part of the receptacle shielding member 60 and a part of the plug shielding member 110 from both of the receptacle insulator 30 and the plug insulator 80. , Plug contacts 90 etc. can be arranged. Thus, the connector 10 can enhance the noise shielding effect.

  The connector 10 can be guided to the grounding pattern without disturbing the flow of noise by the elastic deformation portion 62 and the bending portion 114 coming into contact at one point. Thus, the connector 10 can enhance the noise shielding effect. As described above, the connector 10 has the gap contact between the outer peripheral side shielding portion 61 and the outer peripheral side shielding portion 111 at the time of fitting, so that the receptacle contact 40 and the plug contact 90 are provided by misalignment and bending. It is possible to suppress the influence on the fitting of

  In the connector 10, the lengths of the opposing short parts of each of the receptacle shielding member 60 and the plug shielding member 110 are asymmetrical, and the pair of receptacle shielding members 60 and the pair of plug shielding members 110 does not create an air gap around the periphery. Since the inner components are completely surrounded, the noise shielding effect can be enhanced. Thus, the connector 10 can obtain a sufficient noise shielding effect.

  The outer side of the receptacle shielding member 60 of the connector 10 is formed by the flat outer peripheral shielding portion 61, so that noise from the outside can be received in a plane. Similarly, the connector 10 can receive external noise from the outside in a plane by the outer side of the plug shielding member 110 being constituted by the flat outer peripheral shielding portion 111. That is, the connector 10 can make the noise shielding effect more stable as compared with the case where the outer surface is formed in a complicated shape.

  The connector 10 can improve the noise shielding effect because the structures along the front, rear, left, and right directions of the receptacle shielding member 60 and the plug shielding member 110 are respectively double structures.

  The connector 10 can prevent breakage of the plug contact 90 and the receptacle contact 40 by the plug shielding member 110 initially contacting the receptacle shielding member 60 at the time of fitting. Similarly, the connector 10 can also prevent damage to the plug insulator 80 and the receptacle insulator 30.

  In the connector 10, the upper end portion of the attachment portion 68 and the upper end portion of the attachment portion 118 have an R shape, and the function of guiding is realized, whereby the fitting property can be improved.

  The connector 10 protects the corresponding portions of the receptacle insulator 30 and the plug insulator 80 from three directions by the attachment portion 68 and the attachment portion 118 being substantially U-shaped in cross section, and breakage of each insulator at the time of fitting Can be prevented.

  The connector 10 makes it easy to confirm the mounting on the circuit boards CB1 and CB2 even in the low-profile state. That is, since the operator can visually recognize the mounting portion 41 of the receptacle contact 40, the mounting portion 51 of the receptacle power contact 50, and the mounting portion 65 of the receptacle shielding member 60 from above and below, soldering is accurately performed. It can be easily checked if it is Similarly, the operator can easily inspect whether the soldering is correctly performed by visually recognizing the mounting portion 91 of the plug contact 90 and the mounting portion 101 of the plug power contact 100 from the vertical direction. it can.

  In the connector 10, the plug contacts 90 and the plug power contacts 100 have the lead-in portions 95 and the lead-in portions 105, respectively, so that the fitting property can be improved. The connector 10 has the stabilizer 108, so that it is possible to prevent the plug power contact 100 from being flipped from the plug molded product 75, and to regulate the movement of the plug molded product 75 after being held.

  The connector 10 can improve the holding power at the time of fitting of the receptacle connector 20 and the plug connector 70 by the plug power contact 100 contacting and holding the receptacle power contact 50 at two points. In the connector 10, the plug projection 94, the first projection 106, and the second projection 107 play the role of a climbing wall in the removal direction of the plug connector 70, thereby achieving the detachment prevention action. In other words, the connector 10 can improve the holding power at the time of fitting.

  The connector 10 can give a click feeling to the worker at the time of fitting by the plug projection 94, the first projection 106 and the second projection 107. That is, the connector 10 contributes to the improvement of the workability.

  The connector 10 can prevent rotation of the receptacle contact 40 in the front-rear direction at the time of assembly or use by locating the contact engaging projection 35 b between the pair of locking portions 42 of the receptacle contact 40. That is, the connector 10 can improve the accuracy of the holding position of the receptacle contact 40 with respect to the receptacle insulator 30.

  Similarly, in the connector 10, the power supply contact engaging projection 36b is positioned between the pair of locking portions 52 of the receptacle power contact 50, thereby rotating the receptacle power contact 50 in the front-rear direction during assembly or use. It can be deterred. That is, the connector 10 can improve the accuracy of the holding position of the receptacle power supply contact 50 with respect to the receptacle insulator 30.

  The receptacle contact 40 and the plug contact 90 can obtain good transmission characteristics for high frequency signals even when the connector 10 has a reduced height.

  That is, since the height of the curved portion 43 is lower than the height of the contact portion 45, the receptacle contact 40 can increase the separation distance between the curved portion 43 and the mounting portion 91 at the time of fitting. Thus, the receptacle contact 40 can suppress electrical coupling with the plug contact 90, thereby suppressing crosstalk.

  The receptacle contact 40 can improve the transmission characteristics for high frequency signals because the resilient contact piece 44 is wider than the curved portion 43. The receptacle contact 40 is configured such that the tip end position of the resilient contact piece 44 is approximately the same as the height position of the contact portion 45, so that the transmission characteristics for high frequency signals can be similarly improved.

  The plug contact 90 is configured such that the substantially U-shaped tip end position of the extension portion 93 is approximately the same as the height position of the contact portion 92, so that the stub component can be reduced and transmission characteristics for high frequency signals can be improved. .

  The plug contact 90 and the receptacle contact 40 contact each other at only one point at the time of fitting, so that the disturbance of the current to the high frequency signal can be suppressed and the transmission characteristic can be improved.

  Thus, between the electronic component (eg, CPU, controller, memory, etc.) mounted on the circuit board CB1 and the electronic component (eg, high-performance module, semiconductor, large capacity memory, etc.) mounted on the circuit board CB2 Enables high-speed communication with good transmission characteristics.

  It will be apparent to those skilled in the art that the present invention can be realized in other predetermined forms other than the above-described embodiment without departing from the spirit or essential characteristics thereof. Thus, the foregoing description is illustrative and not restrictive. The scope of the invention is defined by the appended claims rather than by the foregoing description. Some of the changes that come within the scope of the equivalents are intended to be embraced therein.

  For example, the structure of each shielding member may be interchanged between the receptacle connector 20 and the plug connector 70.

  The engaging portion 66 may be formed in a recessed shape, and the engaging portion 116 may be formed in a claw shape.

  In the connector 10, one of the outer peripheral shielding portion 111 and the inner peripheral shielding portion 112 may be omitted from the plug shielding member 110. On the other hand, even if the connector 10 is provided with one or more shielding portions different from the outer peripheral shielding portion 111 and the inner peripheral shielding portion 112 in the front-rear direction with the outer peripheral shielding portion 111 and the inner peripheral shielding portion 112 Good. Similarly, the connector 10 may be provided by arranging one or more shielding portions other than the outer peripheral side shielding portion 61 in the front-rear direction with the outer peripheral side shielding portion 61.

  The base material of the receptacle shielding member 60 and the plug shielding member 110 may be made of resin, and the surface of the base material (resin) may be plated or coated with a conductive material.

10 connector 20 receptacle connector (first connector)
30 receptacle insulator (first insulator)
31 bottom plate portion 32 outer peripheral wall 32a front wall 32b rear wall 33 fitting convex portion 34 fitting recess 35 contact mounting groove 35a deformation allowing groove 35b contact engagement protrusion 36 power contact mounting groove 36a deformation allowing groove 36b power contact engaging protrusion 37 Support part 40 receptacle contact (contact)
41 mounting portion 42 locking portion 43 curved portion 44 elastic contact piece 45 contact portion (first contact portion)
Reference Signs List 50 receptacle power supply contact 51 mounting portion 52 locking portion 53 curved portion 54 elastic contact piece 55 contact portion 56 protrusion 60 receptacle shielding member (first shielding member)
61 Outer peripheral side shielding part (first outer peripheral side shielding part)
62 elastically deformable portion 63 through hole 64 leading portion 65 mounting portion (first mounting portion)
66 Engaging part (first engaging part)
67 Short part 68 Mounting part 70 Plug connector (second connector)
75 Plug molded product 80 Plug insulator (second insulator)
81 bottom plate 82 annular wall 82a front wall 82b rear wall 83 fitting recess 84 contact holding groove 85 power contact mounting groove 86 support 90 plug contact (contact)
91 mounting portion 92 contact portion (second contact portion)
93 Extension part 94 Plug projection 95 Guide part 100 Plug power contact 101 Mounting part 102 Extension part 103 Contact part 104 Locking part 105 Guide part 106 1st projection 107 2nd projection 108 Stabilizer 110 Plug shielding member (2nd shielding member )
111 Outer peripheral side shielding part (second outer peripheral side shielding part)
112 Inner Shielding Section 113 Curved Connecting Section 114 Flexing Section 115 Mounting Section (Second Mounting Section)
116 Engagement part (second engagement part)
117 Short part 118 Mounting part CB1 Circuit board (first circuit board)
CB2 circuit board (second circuit board)
S1 void S2 void

Claims (4)

A contact provided in a first connector connected to a second connector to electrically connect circuit boards, the contact comprising:
A first contact portion that contacts a contact provided to the second connector when the first connector and the second connector are connected;
A pair of locking portions for locking to a first insulator provided in the first connector;
A curved portion connecting the pair of locking portions;
Equipped with
The curved portion is formed at a position lower than a portion of the first contact portion that protrudes most toward the curved portion.
contact. And a resilient contact piece continuous with the locking portion formed on the inner side and including the first contact portion,
The resilient contact piece is wider than the curved portion.
The contact of claim 1. The tip end of the elastic contact piece is formed at a height position substantially equal to a portion of the first contact portion that protrudes most toward the curved portion.
A contact according to claim 2. A contact in contact with the contact according to any one of claims 1 to 3, wherein the contact is
A second contact portion that contacts the first contact portion when the first connector and the second connector are connected;
An extension portion extending outward in a substantially U shape from the second contact portion;
Equipped with
The substantially U-shaped tip end of the extension portion is formed at the same level of height as the second contact portion.
contact.

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